Catalyst Process PDF
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Uploaded by FertileDravite5145
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Summary
This document contains a set of questions and notes about a chemical process, likely related to catalyst mixing times and reaction stages. It also includes details about different types of dryers and their parameters. The stage of the process and the questions are related to a chemical process or specific production.
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## When Does High Monomer Start, What Does it Mean? - Sporge Rate too Low? - Sporge Rate Too High? - What can cause it? ## Define - UL.2? ## Catalyst Mix Times ## What is MEHQ2 - When Do We Add it? ## Stages of Reaction - What Drives Tren? ## Screen for LPI1/LP2 - LP3 Dryers - Type? - Moisture...
## When Does High Monomer Start, What Does it Mean? - Sporge Rate too Low? - Sporge Rate Too High? - What can cause it? ## Define - UL.2? ## Catalyst Mix Times ## What is MEHQ2 - When Do We Add it? ## Stages of Reaction - What Drives Tren? ## Screen for LPI1/LP2 - LP3 Dryers - Type? - Moistures? - Cyclones? - Screw? ## LP3 GRI? - LP3-10 microns - LP1/LP2-6 microns ## Starts at 600, Fails at 1000 - Means acrylamide unreacted - Leculing Manual valve, taking reactor - Bad Raw materials, monomer not reaching - BAD Catalyst, Bad Sparges, formation top ## Too Low? - Not enough oxygen will be removed and will be inadequate mixing of catalyst. ## Too High? - Can lead to poor catalyst mixing and erratic curves resulting in off spec ## Step A - Add 500% verserex ## Step B - Add 250% redox ## Step C - Add 500% RCPOX ## UL. a test the viscosity or thickness - of a polymer chain when it dissolves in water ## VA 20-30 min - MBA-30 min - Versenex- 3 min - Hypo- 5 min - VA-44-5 min - PurSulfate- 2 min - TBHP- 30 sec - MOHR salt- z min ## It is an inhibitor we add into the DTank - To inhibit auto initiation - We add it after we add acrylamide ## Initiation-Redoy Catalyst - Propagation-Hypo - Termination-Thermocatalyst - Absence of monomer, Free radicals attacus end of a crain not allowing a new one to grow ## Dryer 1 - 54010, Evoparative, 3 screws - 2 Cyclones, Pa Dole ## Dryer 2 - 0: ftusional, 12-15010, Fluidized - 5 cyclones ## Dryer 3-cooling, 5 cyclones, 1190 ## Storting a Dead Bater - ?
